News tagged with twin earth

Finding Twin Earths: Harder Than We Thought

(PhysOrg.com) -- Does a twin Earth exist somewhere in our galaxy? Astronomers are getting closer and closer to finding an Earth-sized planet in an Earth-like orbit. NASA's Kepler spacecraft just launched to ...

Space & Earth / Astronomy

Mar 20, 2009 | 4.6 / 5 (16) | 1